/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.netbeans.modules.profiler.v2.impl;

import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
import org.openide.util.RequestProcessor;

/**
 *
 * @author Jiri Sedlacek
 */
public final class WeakProcessor {
    
    private Reference<RequestProcessor> processor;
    
    private final String name;
    private final int throughput;
    
    public WeakProcessor(String name) {
        this(name, 1);
    }
    
    public WeakProcessor(String name, int throughput) {
        this.name = name;
        this.throughput = throughput;
    }
    
    public void post(Runnable task) {
        processor().post(task);
    }
    
    public void post(Runnable task, int delay) {
        processor().post(task, delay);
    }
    
    private synchronized RequestProcessor processor() {
        RequestProcessor p = processor != null ? processor.get() : null;
        
        if (p == null) {
            p = new RequestProcessor(name, throughput);
            processor = new WeakReference(p);
        }
        
        return p;
    }
    
}
